A four-way valve integrated casting and a grease pump using the integrated casting.

Abstract

This application relates to a four-way valve integrated casting and a grease pump using the integrated casting, belonging to the technical field of grease pumps. It includes an integrated casting with a first interface fixedly disposed at its upper end, a second interface fixedly disposed on one side of its bottom end, an oil outlet fixedly disposed on one side of the integrated casting, and an oil inlet fixedly disposed on the side of the bottom end of the integrated casting away from the second interface. This application, by integrating the functions of a four-way valve onto the integrated casting, avoids the space occupation problem of traditional three-way valves, thereby increasing the oil storage capacity and reducing the frequency of lubrication replenishment. The first interface, second interface, oil outlet, and oil inlet on the integrated casting each perform different functional connections, and together with the internal channels, achieve a reasonable distribution of the oil circuit, increasing the oil storage capacity to meet the long-term or large-volume lubrication needs of equipment and improving equipment operating efficiency.

Description

Technical Field

[0001] This application relates to the field of grease pump technology, and in particular to a four-way valve integrated casting and a grease pump using the integrated casting. Background Technology

[0002] A grease pump is a lubrication device that supplies lubricating oil to lubrication points. Mechanical equipment needs to be lubricated regularly. In the past, the main method of lubrication was manual lubrication after a certain maintenance cycle, depending on the working condition of the equipment. Grease pumps can make this maintenance work simpler.

[0003] However, most existing grease pumps use three-way valves to deliver oil to the internal circuit, and the three-way valves are located inside the oil reservoir, occupying too much internal space of the oil reservoir. This reduces the lubricating oil capacity and may not be able to meet the long-term or large-volume lubrication needs of the equipment, increasing the frequency of lubricating oil replenishment and affecting the normal operating efficiency of the equipment. Utility Model Content

[0004] The purpose of this application is to provide a four-way valve integrated casting and a grease pump using the integrated casting, which has the advantages of increasing oil storage capacity. It solves the problem that most existing grease pumps use a three-way valve to transport oil through the internal circuit, and the three-way valve is located inside the oil storage box, which occupies too much internal space of the oil storage box, resulting in a reduction in lubricating oil capacity. This may not be able to meet the long-term or large-volume lubrication needs of the equipment, increase the frequency of replenishing lubricating oil, and affect the normal operating efficiency of the equipment.

[0005] In a first aspect, this application provides a four-way valve integrated casting, which adopts the following technical solution: A four-way valve integrated casting includes an integrated casting, a first interface fixedly provided at the upper end of the integrated casting, a second interface fixedly provided on one side of the bottom end of the integrated casting, an oil outlet fixedly provided on one side of the integrated casting, an oil inlet fixedly provided on the side of the bottom end of the integrated casting away from the second interface, an annular groove opened at the bottom end of the integrated casting, a sealing ring fixedly connected inside the annular groove, a pressure gauge fixedly connected inside the first interface, and a pressure switch fixedly connected inside the second interface.

[0006] By adopting the above technical solution, the four-way valve function is integrated into the integrated casting, avoiding the space occupation problem of the traditional three-way valve, thereby increasing the oil storage capacity and reducing the frequency of lubrication replenishment. The first interface, second interface, oil outlet, and oil inlet on the integrated casting each undertake different functional connections, and together with the internal channels, the oil circuit is rationally allocated. The pressure gauge in the first interface can display the oil circuit pressure in real time, and the pressure switch in the second interface can sense pressure changes and make corresponding adjustments to ensure stable oil circuit delivery. The sealing ring in the annular groove at the bottom of the integrated casting enhances the sealing performance of the installation and prevents oil leakage. Through the design of the integrated casting, the normal delivery and monitoring control of the oil circuit are guaranteed, and the oil storage capacity is increased to meet the long-term or large-volume lubrication needs of the equipment and improve the operating efficiency of the equipment.

[0007] Secondly, this application also provides a grease pump using an integrated casting, based on a four-way valve integrated casting, including a pump base, the integrated casting being fixedly connected to one side of the upper end of the pump base, a liquid level sensor being fixedly connected to one side of the bottom end of the pump base, a pump body being fixedly connected to the upper end of the pump base away from the integrated casting, a pump head being fixedly connected to the end of the pump body that penetrates the pump base, a connecting pipe being fixedly connected to the output end of the pump head, and an oil inlet being fixedly connected to the end of the connecting pipe away from the pump head.

[0008] By adopting the above technical solution, the integrated casting is fixed to one side of the upper end of the pump base, avoiding the space occupation problem of the traditional three-way valve placed in the oil storage box. This increases the oil storage capacity of the oil storage box, reduces the frequency of lubricating oil replenishment, better meets the long-term or large-volume lubrication needs of the equipment, and ensures the continuous and stable operation of the equipment. It solves the problem of insufficient oil storage affecting the operating efficiency of traditional grease pumps. The pump head, which is connected through the pump base, is directly connected to the oil inlet of the integrated casting through the connecting pipe, forming a grease delivery channel. This ensures that the lubricating grease can be quickly and stably delivered to the required parts. At the same time, the liquid level sensor set on one side of the bottom of the pump base can monitor the grease level in the oil storage area in real time. When the liquid level is too low, it can provide timely feedback, which makes it convenient for operators to replenish the lubricating oil in time, avoids equipment wear or failure caused by insufficient oil, and further ensures the operational safety and service life of the equipment.

[0009] Preferably, an oil injection pipe is fixedly connected to one side of the upper end of the pump base, and a sealing cap is provided at the upper end of the oil injection pipe.

[0010] By adopting the above technical solution, an oil injection pipe is installed on one side of the upper end of the pump base, and a sealing cap is installed at the upper end of the oil injection pipe. The oil injection pipe provides a dedicated channel for adding lubricating oil, making it convenient for operators to replenish the oil. The sealing cap is closed after oil injection to prevent dust, impurities and other contaminants from polluting the lubricating oil, ensuring the convenience of oil injection operation, maintaining the cleanliness of the oil and ensuring the lubrication effect.

[0011] Preferably, a placement groove is fixedly provided inside the oil injection pipe, and a filter screen is slidably disposed inside the oil injection pipe, with the filter screen slidably disposed at the upper end of the placement groove.

[0012] By adopting the above technical solution, a placement groove is fixedly set inside the oil injection pipe, and the filter screen is slidably installed on the upper end of the placement groove. When the operator adds lubricating oil to the oil storage box through the oil injection pipe, the oil will first flow through the filter screen. The filter screen can filter out any impurities that may be present in the oil, preventing impurities from entering the pump body with the oil and causing damage to the pump body. At the same time, the filter screen is installed in a sliding manner. If a lot of impurities accumulate on the surface of the filter screen after long-term use, the operator can easily remove the filter screen from the oil injection pipe for cleaning or replacement, ensuring the continuity of the filtration effect and further ensuring the cleanliness of the lubricating oil and the stable operation of the equipment lubrication system.

[0013] Preferably, a handle is rotatably connected to the upper end of the filter screen.

[0014] By adopting the above technical solution, and by rotating the handle at the top of the filter screen, when the filter screen needs to be cleaned or replaced, the operator can directly grasp the handle to remove the filter screen from the oil filling pipe without the need for additional tools, making the operation more convenient. When the filter screen does not need to be removed, the handle can be rotated to a horizontal position, which will not hinder the oil filling operation or occupy extra space. This improves the convenience of filter screen disassembly and assembly without affecting the normal use of the equipment.

[0015] Preferably, a housing is fixedly connected to one side of the upper end of the pump base, a controller is fixedly connected to one side inside the housing, and the pump body is fixedly installed inside the housing.

[0016] By adopting the above technical solution, by fixing the outer shell to one side of the upper end of the pump base and placing both the controller and the pump body inside the outer shell, the outer shell can provide physical protection for the controller and the pump body, avoiding damage to the core components caused by external dust, moisture, impurities or accidental collisions.

[0017] Preferably, an oil storage box is fixedly connected to the bottom of the pump base, and an installation plate is fixedly connected to one side of the pump base. The installation plate has multiple installation holes arranged in a linear array inside.

[0018] By adopting the above technical solution, an oil storage box is fixedly connected to the bottom of the pump base. The oil storage box can store lubricating oil and continuously supply oil for the lubrication operation of the equipment, avoiding the impact of unstable oil storage on the lubrication effect. At the same time, a mounting plate with multiple mounting holes is fixedly connected to one side of the pump base, and the operator can use the mounting holes to fix the entire device in the required working position.

[0019] Preferably, the controller is electrically connected to the pump body, the liquid level sensor, and the pressure switch, respectively.

[0020] By adopting the above technical solution, the controller is electrically connected to the pump body, the level sensor, and the pressure switch respectively. When the level sensor detects that the oil level in the oil reservoir is insufficient, it will transmit a signal to the controller, which can then issue a prompt. When the pressure switch senses an abnormal system pressure, it will feed the information back to the controller, which can then promptly adjust the pump body to maintain pressure stability. This achieves real-time monitoring and automatic adjustment of the equipment's operating status, reduces the need for manual intervention, improves the intelligence level of equipment operation, and enables rapid response in case of abnormalities, ensuring the continuous and stable operation of the lubrication system.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] This invention relates to a four-way valve integrated casting and a grease pump utilizing the integrated casting. By integrating the integrated casting and pump body onto the pump base, the multi-port design of the integrated casting allows for connection to pressure gauges and pressure switches for pressure monitoring and control. A sealing ring prevents oil leakage, ensuring system tightness. Simultaneously, the pump body delivers oil to the integrated casting via the pump head and connecting pipe, and then supplies it to lubrication points through the outlet. This effectively simplifies piping connections, reduces space occupation, increases oil storage capacity, achieves stable oil delivery and pressure control, and improves equipment operational reliability. Furthermore, a level sensor at the bottom of the pump base monitors the oil level in real time, promptly alerting the user to replenish the oil when it is insufficient. To prevent lubrication interruption, the upper oil filling pipe is equipped with a sealing cap, which facilitates oil filling while isolating impurities. The filter screen and handle design inside the oil filling pipe can filter oil impurities and facilitate filter screen cleaning and replacement, further ensuring oil cleanliness. In addition, the outer shell provides protection for the controller and pump body, preventing external factors from damaging core components. The oil reservoir stably stores oil, and the mounting plate makes it easy to fix the device in the required position. The controller is electrically connected to the pump body, liquid level sensor, and pressure switch, which can monitor the equipment status in real time and automatically adjust, reducing manual intervention and realizing intelligent operation. It comprehensively ensures the stable and efficient operation of the lubrication system, taking into account the convenience of operation and maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the four-way valve structure of this application;

[0025] Figure 3 This is a schematic diagram of the four-way valve installation structure of this application.

[0026] Figure 4 This is a schematic diagram of the oil circuit connection structure of the present application.

[0027] Figure 5 This is a schematic diagram of the filter installation structure of this application.

[0028] In the picture:

[0029] 1. Pump base; 2. Integrated casting; 3. First interface; 4. Second interface; 5. Oil outlet; 6. Oil inlet; 7. Annular groove; 8. Sealing ring; 9. Pressure gauge; 10. Pressure switch; 11. Pump body; 12. Pump head; 13. Connecting pipe; 14. Liquid level sensor; 15. Oil filling pipe; 16. Sealing cover; 17. Placement slot; 18. Filter screen; 19. Handle; 20. Housing; 21. Controller; 22. Oil reservoir; 23. Mounting plate; 24. Mounting hole. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0031] Example 1: A four-way valve integrated casting, referring to... Figure 1 , Figure 2 and Figure 3 The system includes an integrated casting 2, which integrates the functions of a four-way valve. The integrated casting 2 has a first interface 3 fixedly installed at its upper end, a second interface 4 fixedly installed on one side of its bottom end, an oil outlet 5 fixedly installed on one side of its side, and an oil inlet 6 fixedly installed on the side of its bottom end away from the second interface 4. The first interface 3, second interface 4, oil outlet 5, and oil inlet 6 on the integrated casting 2 each perform different functional connections, working in conjunction with internal channels to achieve a reasonable distribution of the oil circuit. An annular groove 7 is opened at the bottom of the integrated casting 2, and a sealing ring 8 is fixedly connected inside the annular groove 7. The sealing ring 8 inside the annular groove 7 at the bottom of the integrated casting 2 enhances the sealing performance of the installation and prevents oil leakage. A pressure gauge 9 is fixedly connected inside the first interface 3, which can display the oil circuit pressure in real time. A pressure switch 10 is fixedly connected inside the second interface 4, which can sense pressure changes and make corresponding adjustments to ensure stable oil circuit delivery.

[0032] Example 2: A grease pump using an integrated casting, based on the above-mentioned four-way valve integrated casting, with reference to... Figure 1 , Figure 3 and Figure 4The system includes a pump base 1 and an integrated casting 2 fixedly connected to one side of the upper end of the pump base 1. By fixing the integrated casting 2 to one side of the upper end of the pump base 1, the problem of the traditional three-way valve occupying space inside the oil reservoir 22 is avoided, thereby increasing the oil storage capacity of the oil reservoir 22, reducing the frequency of lubricating oil replenishment, better meeting the long-term or large-volume lubrication needs of the equipment, ensuring the continuous and stable operation of the equipment, and solving the problem of insufficient oil storage affecting the operating efficiency of traditional grease pumps. A liquid level sensor 14 is fixedly connected to one side of the bottom end of the pump base 1. The liquid level sensor 14 set on one side of the bottom end of the pump base 1 can monitor the grease level in the oil storage area in real time, and can promptly react when the liquid level is too low. The system allows operators to replenish lubricating oil in a timely manner, preventing equipment wear or malfunctions caused by insufficient oil and further ensuring the safety and service life of the equipment. A pump body 11 is fixedly connected to the upper end of the pump base 1 away from the integrated casting 2. A pump head 12 is fixedly connected to the end of the pump body 11 that passes through the pump base 1. A connecting pipe 13 is fixedly connected to the output end of the pump head 12. The end of the connecting pipe 13 away from the pump head 12 is fixedly connected to the oil inlet 6. The pump head 12 connected to the pump body 11 through the pump base 1 is directly connected to the oil inlet 6 of the integrated casting 2 through the connecting pipe 13, forming a grease delivery channel to ensure that the lubricating grease can be delivered quickly and stably to the required parts.

[0033] Reference Figure 1 , Figure 4 and Figure 5An oil injection pipe 15 is fixedly connected to one side of the upper end of the pump base 1. A sealing cap 16 is provided at the upper end of the oil injection pipe 15. By connecting the oil injection pipe 15 to one side of the upper end of the pump base 1 and providing a sealing cap 16 at the upper end of the oil injection pipe 15, a dedicated channel for adding lubricating oil is provided, making it convenient for operators to replenish the oil. The sealing cap 16 is closed after oiling to prevent dust, impurities, etc. from contaminating the lubricating oil, ensuring the convenience of oiling operations and maintaining the cleanliness of the oil to ensure lubrication effect. A placement groove 17 is fixedly provided inside the oil injection pipe 15, and a filter screen 18 is slidably installed inside the oil injection pipe 15. The filter screen 18 is slidably installed at the upper end of the placement groove 17. By fixing the placement groove 17 inside the oil injection pipe 15 and sliding the filter screen 18 in the placement groove, the oil injection pipe 15 provides a dedicated channel for adding lubricating oil, making it convenient for operators to replenish the oil. At the upper end of 17, when the operator replenishes lubricating oil into the oil reservoir 22 through the oil filling pipe 15, the oil will first flow through the filter screen 18. The filter screen 18 can filter out any impurities that may be present in the oil, preventing impurities from entering the pump body 11 with the oil and causing damage to the pump body 11. At the same time, the filter screen 18 adopts a sliding installation method. If a lot of impurities accumulate on the surface of the filter screen 18 after long-term use, the operator can easily remove the filter screen 18 from the oil filling pipe 15 for cleaning or replacement, ensuring the continuity of the filtration effect and further ensuring the cleanliness of the lubricating oil and the stable operation of the equipment lubrication system. The upper end of the filter screen 18 is rotatably connected to a handle 19. By rotating the handle 19 at the upper end of the filter screen 18, the operator can easily clean or replace the filter screen 18 when necessary. The filter screen 18 can be removed directly from the oil filling pipe 15 by holding the handle 19 without the need for additional tools, making the operation more convenient. When the filter screen 18 does not need to be removed, the handle 19 can be rotated to a horizontal position, which will not hinder the oil filling operation or occupy extra space. This improves the convenience of removing and installing the filter screen 18 without affecting the normal use of the equipment. The upper side of the pump base 1 is fixedly connected to the outer shell 20, and the controller 21 is fixedly connected to the inner side of the outer shell 20. The pump body 11 is fixedly installed inside the outer shell 20. By fixing the outer shell 20 to the upper side of the pump base 1 and installing both the controller 21 and the pump body 11 inside the outer shell 20, the outer shell 20 can provide physical protection for the controller 21 and the pump body 11, avoiding damage to the core components from external dust, moisture, impurities or accidental collisions. To prevent damage, an oil reservoir 22 is fixedly connected to the bottom of the pump base 1, and a mounting plate 23 is fixedly connected to one side of the pump base 1. The mounting plate 23 has multiple mounting holes 24 arranged in a linear array inside. By fixing the oil reservoir 22 to the bottom of the pump base 1, the oil reservoir 22 can store lubricating oil, continuously providing oil supply for the equipment's lubrication operation and avoiding the impact of unstable oil storage on the lubrication effect. Simultaneously, the mounting plate 23 with multiple mounting holes 24 is fixedly connected to one side of the pump base 1, allowing operators to use the mounting holes 24 to fix the entire device in the desired working position. The controller 21 is electrically connected to the pump body 11, the level sensor 14, and the pressure switch 10.The controller 21 is a PLC programmable controller. It receives the liquid level signal from the liquid level sensor 14. When the liquid level sensor 14 detects insufficient oil in the oil reservoir 22, it transmits the signal to the controller 21. After identification by the internal processor, the controller issues an alert. It also receives the pressure signal from the pressure switch 10, processes it internally, and outputs a control signal to the pump body 11 to start / stop or adjust the speed of the pump body 11. This ensures safe and stable operation of the equipment, reduces the need for manual intervention, and improves the intelligence level of equipment operation.

[0034] The implementation principle of this application embodiment is as follows:

[0035] First, fix the entire device to the required position through the mounting holes 24 on the mounting plate 23 on one side of the pump base 1.

[0036] In the working position, the oil reservoir 22 at the bottom of the pump base 1 pre-stores sufficient lubricating oil to provide the oil base for lubrication operations. After the equipment is started, the pump body 11 inside the outer casing 20 at the upper end of the pump base 1 starts to operate. The pump body 11 generates power through the pump head 12 that penetrates the pump base 1, drawing the lubricating oil from the oil reservoir 22. The oil is then transported to the oil inlet 6 of the integrated casting 2 through the connecting pipe 13 at the output end of the pump head 12. After the oil enters the integrated casting 2, it is guided by its internal flow channels and finally delivered from the oil outlet 5 on one side of the integrated casting 2 to the equipment parts that need lubrication, completing the oil supply process. During the oil transportation process, the pressure gauge 9 connected to the first interface 3 at the upper end of the integrated casting 2 displays the oil pressure in the system in real time, while the pressure switch 10 connected to the second interface 4 at the bottom continuously monitors the pressure changes. If the pressure is abnormal, the pressure switch 10 will immediately transmit the signal to the controller 21 inside the outer casing 20. After receiving the signal, the controller 21 will promptly adjust the operating status of the pump body 11 to ensure that the system pressure is maintained. Within a stable range, the sealing ring 8 within the annular groove 7 at the bottom of the integrated casting 2 fits tightly, effectively preventing oil leakage during transportation and ensuring system sealing and pressure stability. When the oil level in the oil reservoir 22 decreases, the level sensor 14 at the bottom of the pump base 1 detects the insufficient oil and sends a signal to the controller 21. Upon receiving the signal, the controller 21 issues a prompt, reminding the operator to replenish the lubricating oil. The operator then opens the sealing cap 16 at the top of the oil filling pipe 15 and adds oil to the pipe. When lubricating oil is added, the oil first flows through the filter screen 18 on the placement groove 17 inside the oil filling pipe 15. The filter screen 18 filters out impurities in the oil, preventing impurities from entering the oil storage box 22 and causing damage to the pump body 11 when it is being pumped out. If a lot of impurities accumulate on the surface of the filter screen 18 after long-term use, the operator can hold the handle 19 at the top of the filter screen 18 and remove the filter screen 18 from the oil filling pipe 15 for cleaning or replacement. After cleaning or replacement, the filter screen 18 is put back into the placement groove 17 and the sealing cover 16 is closed.

Claims

1. A four-way valve integrated casting comprising an integrated casting (2), characterized in that: The integrated casting (2) has a first interface (3) fixedly installed at the upper end, a second interface (4) fixedly installed on one side of the bottom end of the integrated casting (2), an oil outlet (5) fixedly installed on one side of the integrated casting (2), an oil inlet (6) fixedly installed on the side of the bottom end of the integrated casting (2) away from the second interface (4), an annular groove (7) is opened at the bottom end of the integrated casting (2), a sealing ring (8) is fixedly connected inside the annular groove (7), a pressure gauge (9) is fixedly connected inside the first interface (3), and a pressure switch (10) is fixedly connected inside the second interface (4).

2. A grease pump using an integrated casting, based on the four-way valve integrated casting according to claim 1, characterized in that: The pump includes a pump base (1), the integrated casting (2) is fixedly connected to one side of the upper end of the pump base (1), a liquid level sensor (14) is fixedly connected to one side of the bottom end of the pump base (1), a pump body (11) is fixedly connected to one end of the upper end of the pump base (1) away from the integrated casting (2), a pump head (12) is fixedly connected to one end of the pump body (11) that passes through the pump base (1), a connecting pipe (13) is fixedly connected to the output end of the pump head (12), and the end of the connecting pipe (13) away from the pump head (12) is fixedly connected to the oil inlet (6).

3. The grease pump using an integrated casting according to claim 2, characterized by: An oil injection pipe (15) is fixedly connected to one side of the upper end of the pump base (1), and a sealing cap (16) is provided at the upper end of the oil injection pipe (15).

4. The grease pump using an integrated casting according to claim 3, characterized by: The oil injection pipe (15) is fixedly provided with a placement groove (17), and a filter screen (18) is slidably provided inside the oil injection pipe (15). The filter screen (18) is slidably provided at the upper end of the placement groove (17).

5. The grease pump using an integrated casting according to claim 4, characterized in that: The filter screen (18) is rotatably connected to a handle (19) at its upper end.

6. The grease pump using an integrated casting according to claim 2, characterized by: The upper side of the pump base (1) is fixedly connected to a housing (20), and the inside side of the housing (20) is fixedly connected to a controller (21). The pump body (11) is fixedly installed inside the housing (20).

7. The grease pump using an integrated casting according to claim 2, characterized by: The bottom of the pump base (1) is fixedly connected to an oil storage box (22), and a mounting plate (23) is fixedly connected to one side of the pump base (1). The mounting plate (23) has multiple mounting holes (24) arranged in a linear array inside.

8. The grease pump using the integrated casting according to claim 6, characterized by: The controller (21) is electrically connected to the pump body (11), the liquid level sensor (14), and the pressure switch (10), respectively.

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